Summary: Reader is Duelist Summoner, is person who control of duel monster cards and summon them usually for purpose of duel, and when you win, you gain any of their cards, and possibly use them for later duel. Currently there been duel monster let loose in certain places and disturbing the peace, Reader trying to find out and stop the other Duelist Summoner(s) who are causing these commotions. And on the way Reader meets of other Duelist Summoner(s) but are they; foe(s) or friend(s)?